High current consumtion after using NFC NRF52

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Thu, 07 Dec 2017 15:47:56 GMT

I solved my problem. But migrate to SDK 14 is not enought. Needed to define HAL_NFC_ENGINEERING_BC_FTPAN_WORKAROUND macros. Thank you!

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Wed, 29 Nov 2017 16:24:57 GMT

I found how to fix it. Thank you

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Wed, 29 Nov 2017 16:23:48 GMT

I tried to compile example ble_app_hids_keyboard_pairing_nfc. I have error: #5: cannot open source input file "uECC.h": No such file or directory. I can not find this file in my system

RE: High current consumtion after using NFC NRF52

Sigurd — Wed, 29 Nov 2017 16:17:26 GMT

You only need to unzip the SDK zip archive. Then find the Keil project in the unzipped folder. We no longer uses "Keil Pack Installer" for the SDK.

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Wed, 29 Nov 2017 16:00:35 GMT

How I can update SDK in Keil. Keil says that all packs is updated

RE: High current consumtion after using NFC NRF52

Sigurd — Wed, 29 Nov 2017 15:52:19 GMT

You are then using an old SDK version, that is in alpha! We have deprecated the support for CMSIS pack with the release of SDK 11. See this blog post for more information about that.

Please download and use the latest SDK version(14.2) from this site. Unzip the archive, and find the folder

<SDK 14_folder>\examples\ble_peripheral\experimental\ble_app_hrs_nfc_pairing

where the Heart Rate Application with BLE Pairing Using NFC Pairing Library is located.

More information about the example can be found here.

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Wed, 29 Nov 2017 15:48:20 GMT

C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Examples\11.0.0-2.alpha\ble_peripheral\experimental_ble_app_hrs_pairing_nfc

11.0.0-2 is it version of SDK?

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Wed, 29 Nov 2017 15:44:45 GMT

In the Keil Pack Installer all nordic packs are updated

RE: High current consumtion after using NFC NRF52

Sigurd — Wed, 29 Nov 2017 15:41:13 GMT

Ok, in what folder is the ble_hrs_nfc_pairing example located?

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Wed, 29 Nov 2017 15:38:17 GMT

I am using Keil and MDK. I don't know which SDK folder using. In Keil folder is Nordic Semiconductor subfolder. But in this folder I don't have subfolder documentation. I have thiw subfolder in C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_IoT_Examples\0.8.0 and C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_IoT_lwIP\1.4.1-1. but version in these files does not specify version of SDK

RE: High current consumtion after using NFC NRF52

Sigurd — Wed, 29 Nov 2017 15:24:35 GMT

It's located at top of the file called release_notes.txt, in the folder SDK_folder\documentation

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Wed, 29 Nov 2017 15:22:21 GMT

Yes. I am using ble_hrs_nfc_pairing. How I can know what version of SDK I use? It is must be nRF5_SDK_11.0.0 or nRF5_SDK_12.2.0. But I am not sure which concretely.

RE: High current consumtion after using NFC NRF52

Sigurd — Wed, 29 Nov 2017 14:56:03 GMT

The value 0x41414230 means that you have a revision 1 chip, and you are not affected by the engineering A erratas. You should therefore not use HAL_NFC_ENGINEERING_A_FTPAN_WORKAROUND .

Are you using the SDK example ble_hrs_nfc_pairing ? What SDK version are you using?

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Tue, 28 Nov 2017 20:47:26 GMT

value of NRF_FICR->INFO.VARIANT is 0x41414230. after nfc working current consumtion is about 4 mA. before using nfc pairing this value is abot 35 uA.

RE: High current consumtion after using NFC NRF52

Sigurd — Tue, 28 Nov 2017 16:16:34 GMT

To check if BLE Nano v2 is effected by this errata or not, we need to know what IC revision that is used in BLE Nano v2.

Could you read the FICR INFO.VARIANT register? What value do you get ?

If you are using some printf/log function, you can easily print the value like this:

printf("FICR INFO.VARIANT: %08X\n",NRF_FICR->INFO.VARIANT);

Another important question is, when you measure the current consumption, how high is it? Do you have a number here?

It could also be that you are affected by this ?

RE: High current consumtion after using NFC NRF52

VadimSavchuk — Tue, 28 Nov 2017 09:08:07 GMT

I use RedBear BLE Nano v2 in my remote controller. I use nfc pairing too. My device based on examples HID keyboard and ble_hrs_nfc_pairing. All works fine, but this bug is a problem. I don't know which chip revision use in BLE Nano. when I define HAL_NFC_ENGINEERING_A_FTPAN_WORKAROUND nothing works

RE: High current consumtion after using NFC NRF52

Sigurd — Mon, 27 Nov 2017 13:13:06 GMT

Hi,

What build do you have on the nRF52 IC? Are using a nRF52832 IC rev. Engineering A ?

To apply the fixes, you should only need to add the define HAL_NFC_ENGINEERING_A_FTPAN_WORKAROUND to the "preprocessor symbols". In e.g. Keil IDE, this is done by entering "Options for Target..." -> C/C++ tab, and then add the define in the preprocessor symbols define field along with the other defines.

Note: We do not recommend any development being done on engineering samples. I recommend to move over to a revision 1 nRF52832 IC.